General

  • Target

    c0c986d4fd69c6bba1437af6ab20ed4623583f3e8ae932bf12242feaccc6d912

  • Size

    2.0MB

  • Sample

    240524-rrmelshd49

  • MD5

    56c5ed3c32563fb84afd5aca6e6a83ee

  • SHA1

    8179121ac5a44002037e3665bd45f2b475d27ae5

  • SHA256

    c0c986d4fd69c6bba1437af6ab20ed4623583f3e8ae932bf12242feaccc6d912

  • SHA512

    3772d0c51b08d711ea38f0ef4420721f73dc26ab2d775675ae102d96c94791ce978766691fbb719f857c4a274aa512ef99a99919dd8246a9f601df25e9e6eeab

  • SSDEEP

    49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      c0c986d4fd69c6bba1437af6ab20ed4623583f3e8ae932bf12242feaccc6d912

    • Size

      2.0MB

    • MD5

      56c5ed3c32563fb84afd5aca6e6a83ee

    • SHA1

      8179121ac5a44002037e3665bd45f2b475d27ae5

    • SHA256

      c0c986d4fd69c6bba1437af6ab20ed4623583f3e8ae932bf12242feaccc6d912

    • SHA512

      3772d0c51b08d711ea38f0ef4420721f73dc26ab2d775675ae102d96c94791ce978766691fbb719f857c4a274aa512ef99a99919dd8246a9f601df25e9e6eeab

    • SSDEEP

      49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks